For all of these builds, I did not worry about the balsa grain. In general, it's way more important to get the density/mass correct and matching than it is to worry about the grain type. I'm pretty sure the benchmark build used generic A/A-B grain for everything. I wouldn't focus on using c-grain for anything until you have nailed down optimizing everything else as it's much more expensive to work with and really won't help a whole lot in these builds.
I will provide links to the STL files I used for the jig and other support objects in the upcoming videos where I show how to use them. The column video will be next (9/14), and the base one will be early next week (9/17). Thanks!
It depends on the if you are trying to get the bonus or not. The best way to see the exact measurements are to download the zip file with my jig files and load them into a slicer program. This video shows how I came up with the jig designs, and most of the dimensions are shown here as well.
why did you break the column into two files, while the base is only one file? the column and the base are the same height anyway? any printer that could print the base should be able to print the column in one piece?
The base is 24.5cm tall and the column is 26cm. My printer can only print 25cm. You need to have the base a little shorter to give some buffer to follow the 8cm ring rule
I noticed you've been using bonus tower designs for the past videos, does this mean that a bonus design would be worth it with this year's rules? Or is it still the same risk?
Still the same risk. My initial thinking is the bonus would be better because they have the same column dimensions, but I have not even tried to build a non-bonus version yet. It's something that needs to be explored for sure. If the non-bonus can come close to my benchmark bonus score, then it'd definitely be a better choice as it wouldn't be as risky on competition day. (Div C is a different story, I'm more confident that the bonus is the correct way to go there due to the 3-leg design and how it needs to still span the 20cm square in 3 different quadrants)
Would you still use 1/24 by 1/24 for the cross members? I asked this last year lol also, what density should I buy? I calculated around 5-6 pounds per cubic foot, but I'm not sure
There is no one right answer for the cross-members. Using 1/20 is a good choice, as is 1/16 for the base at least. For the column, you might want to look into using 1/32, but it all depends on the density. You'll have to experiment with that a bit. In the final videos of this series, I'll show what exact material I used for the benchmark tower. Stay tuned!
When you make the first tower for this years rules, could you specify what grain balsa you use?
For all of these builds, I did not worry about the balsa grain. In general, it's way more important to get the density/mass correct and matching than it is to worry about the grain type. I'm pretty sure the benchmark build used generic A/A-B grain for everything. I wouldn't focus on using c-grain for anything until you have nailed down optimizing everything else as it's much more expensive to work with and really won't help a whole lot in these builds.
Hi Balsa,could you please send me the 3D design JIG
The jig stl files are all in a zip file in the description of this video that you can download.
can you give me your 3d tower div b 2025 bonus tower jig design.
I will provide links to the STL files I used for the jig and other support objects in the upcoming videos where I show how to use them. The column video will be next (9/14), and the base one will be early next week (9/17). Thanks!
@@balsaengineering6686Thank you for forcasting the dates!
Am I missing the jig files? Or were they delayed? Your videos are amazing as always.
@@aliciawhitlock6396 There is a link to a zip file in the description of this video that has all the jig files. Good luck this season!
I found it thank you!
what are the measurements you use on your base
It depends on the if you are trying to get the bonus or not. The best way to see the exact measurements are to download the zip file with my jig files and load them into a slicer program. This video shows how I came up with the jig designs, and most of the dimensions are shown here as well.
why did you break the column into two files, while the base is only one file? the column and the base are the same height anyway? any printer that could print the base should be able to print the column in one piece?
The base is 24.5cm tall and the column is 26cm. My printer can only print 25cm. You need to have the base a little shorter to give some buffer to follow the 8cm ring rule
I see, thank you, yeah my printer can only do 25cm also
Hi I cannot open the zip file, can you email it to me thank you
If you send me your email (just email me), I can email you the zip file that way
Wow, that base is going to take over a day to print on an ender 3SE
I noticed you've been using bonus tower designs for the past videos, does this mean that a bonus design would be worth it with this year's rules? Or is it still the same risk?
Still the same risk. My initial thinking is the bonus would be better because they have the same column dimensions, but I have not even tried to build a non-bonus version yet. It's something that needs to be explored for sure. If the non-bonus can come close to my benchmark bonus score, then it'd definitely be a better choice as it wouldn't be as risky on competition day. (Div C is a different story, I'm more confident that the bonus is the correct way to go there due to the 3-leg design and how it needs to still span the 20cm square in 3 different quadrants)
Would you still use 1/24 by 1/24 for the cross members? I asked this last year lol
also, what density should I buy? I calculated around 5-6 pounds per cubic foot, but I'm not sure
There is no one right answer for the cross-members. Using 1/20 is a good choice, as is 1/16 for the base at least. For the column, you might want to look into using 1/32, but it all depends on the density. You'll have to experiment with that a bit. In the final videos of this series, I'll show what exact material I used for the benchmark tower. Stay tuned!
@@balsaengineering6686 Thanks so much! I'll look into 1/16 because I suck at building lol
Stl files Please!
The links to the stl files are in the specific columns and bases videos where I show them in use
ngl this guy absolutely carries scioly